CN2416994Y - Machine tool spindle broach mechanism - Google Patents
Machine tool spindle broach mechanism Download PDFInfo
- Publication number
- CN2416994Y CN2416994Y CN 00206958 CN00206958U CN2416994Y CN 2416994 Y CN2416994 Y CN 2416994Y CN 00206958 CN00206958 CN 00206958 CN 00206958 U CN00206958 U CN 00206958U CN 2416994 Y CN2416994 Y CN 2416994Y
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- broaching
- tool
- bar
- pull bar
- machine tool
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- Expired - Fee Related
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Abstract
The utility model relates to a machine tool main shaft draw-knife mechanism. The inside of a main shaft is penetrated with a draw-knife rod, and the draw-knife rod is connected with a jaw device for clamping or releasing the knife. The draw-knife rod is sheathed with a pressing device, and the press device comprises a push-draw rod and a wedging block. The wedging block is provided with an inner double inclined plane and an outer double inclined plane respectively wedged with a reverse inclined plane of the push-pull rod and a wedge-shaped groove of the draw-knife rod. The draw-knife rod has the action of pressing the draw knife, and the section shapes of strip members of a push device are circular. The utility model has the functions of good balance and high running.
Description
The utility model relates to machine tool chief axis, particularly relates to a kind ofly keeping dynamic balancing and reaching the machine tool chief axis tool-broaching mechanism that runs up.
The cutter of various reservation shapes can be installed on the general automated machine tool, so that workpiece is carried out various cuttings, for this cutter can be fixed on the machine tool chief axis fast, usually in this main shaft inside one tool-broaching mechanism is set, utilize pneumatic or the oil pressure equal power device drives this tool-broaching mechanism, make this tool-broaching mechanism clamping or loosening cutter fast.
As Fig. 1, shown in 2, general lathe tool-broaching mechanism is at a main shaft body 10 inner logical axis holes 11 that are provided with, these axis hole 11 front ends are provided with a bellmouth 111 for a sheathed cutter 12, and these bellmouth 111 rears enlarge inner chamber and form a room 112, these main shaft body 10 rear end are provided with a pneumatic means 13, this pneumatic means 13 is made up of a valve body 131 and a piston 132, this piston 132 is nested with in valve body 131 inside, external air source can enter in this valve body 131 and promote this piston 132, this piston 132 extends an axle 133, a broaching tool bar 14 that is fixed in these axle 133 ends is arranged in the axis hole 11, this piston 132 can drive this broaching tool bar 14 telescopic moving forward or backward, be provided with a clamping jaw device 15 at these broaching tool bar 14 front end places, this clamping jaw device 15 is combined by three lobes or pintongs calvus 151, all be arranged with a ball 152 on each calvus 151, this ball 152 can roll and be butted on room 112 inwalls, when this broaching tool bar 14 is stretched out forward, the calvus 151 of this clamping jaw device 15 expands outwardly and unclamps and discharge this cutter 12, and after this broaching tool bar 14 pulls back, the calvus 151 of this clamping jaw device 15 is contraction-like because of entering the less axis hole of internal diameter 11, and this clamping jaw device 15 gets final product the T type portion 121 of clamping cutter 12 rear ends and fixes; For making this clamping jaw device 15 have powerful packing crystallized ability when the clamping cutter 12, be arranged with the circular shell fragment 16 of many groups in this axis hole 11, this circle shell fragment 16 is in twos the stacked and butted spring-go power that post-tensioning is provided to this broaching tool bar 14 in these broaching tool bar 14 rear ends relatively mutually.
Above-mentioned general tool-broaching mechanism has the function that this cutter 12 is unclamped in clamping really, but the use aspect still has following shortcoming.Because of the general sheathed circular shell fragment 16 of tool-broaching mechanism is for making the broaching tool action have the packing effect, but should circle shell fragment 16 structures and each member between can produce the gap, main shaft body 10 is mainly used in 12 rotations of drive instrument to cut, its gap can be caused along main shaft circumferential position weight inequality, can produce angular momentum during rotation, and rotating speed is healed fast angular momentum more greatly, therefore can't keep dynamic balancing, thereby cause whole main shaft body 10 acutely to rock, influence cutting precision, and under worse state, can make 16 compressions of this circle shell fragment in the running and the effect of forfeiture packing broaching tool, cutter 12 can't be clamped and may get loose and fly out, has great danger, so general main shaft can't run up, approximately can only arrive 0～8000RPM (rev/min), the designer is for keep dynamic balancing as far as possible, can only increase the stacked quantity and the length of this circle shell fragment 16, but will make whole main shaft body 10 more huge thus, except that increasing manufacturing cost, long main shaft also can variation on precision.
The utility model purpose is to provide a kind of and keeps dynamic balancing and reach the machine tool chief axis tool-broaching mechanism that runs up.
Machine tool chief axis tool-broaching mechanism of the present utility model ties up to the logical axis hole that is provided with of a main shaft body interior, be equipped with a broaching tool bar in this axis hole, this broaching tool bar front end is equipped with a clamping jaw device, this main shaft body rear end is provided with power set, these power set can drive the broaching tool bar makes this clamping jaw device make to open or fold shape so that a cutter is formed pine oil or clamping, its characteristics are: the shaft pre-position at this broaching tool bar is concaved with a wedge-shaped impression, these power set comprise a cylinder body and a piston main body, this piston main body be set in this cylinder body an inner room and can be reciprocating, its inside also is arranged with a plurality of bearings, this machine tool chief axis tool-broaching mechanism also has compels to push away device, this is compeled to push away device and comprises and take in body, one pull bar, one scotch and a wedging block, this is taken in body and is installed with in axis hole, its inside can be for taking in this pull bar, scotch and wedging block, this pull bar rear end engages and can move forward and backward with piston main body, the pore that its inner tool one wears for this broaching tool bar, be provided with in week in this pore front end one with the relative contra bevel of broaching tool bar wedge-shaped impression, this scotch terminates in this wedging block anterior position admittedly and sentences protruding supporting and this wedging block of block, this wedging block is arranged in the middle of broaching tool bar and the pull bar, it has one and makes the outer inclined-plane of wedging with this pull bar contra bevel, other have one with the interior inclined-plane of this broaching tool bar wedge-shaped impression wedging.
By the combination of above-mentioned structure, this broaching tool bar utilizes wedging block folding wedge face can compel to push away and drive this clamping jaw device, and this cross sectional shape of compeling to push away each member of device is circle, can keep dynamic balancing and reaches the purpose that runs up.
The accompanying drawing simple declaration:
Fig. 1 is the assembled sectional view of general lathe tool-broaching mechanism.
Fig. 2 is the local enlarged diagram of general lathe tool-broaching mechanism.
Fig. 3 is the decomposition view of the utility model preferred embodiment.
Fig. 4 is the holding action figure of the utility model preferred embodiment.
Fig. 5 is the releasing figure of the utility model preferred embodiment.
Fig. 6 is the local enlarged diagram of the utility model preferred embodiment.
Fig. 7 is along the cross-sectional schematic of 7-7 line among Fig. 4.
Also in conjunction with the accompanying drawings the utility model machine tool chief axis tool-broaching mechanism is elaborated below by most preferred embodiment,
Shown in Fig. 3,4, machine tool chief axis tool-broaching mechanism of the present utility model ties up to a main shaft body 20 inner logical axis holes 21 that are provided with, and this place, axis hole 21 the place aheads is provided with a bellmouth 22, just can pack into for a cutter 23.In the present embodiment, this cutter 23 is the cutter tube of machining center (MC), and its rear end has a T shape portion 231.Can supply a sheathed broaching tool bar 24 in this axis hole 21, these broaching tool bar 24 front ends are equipped with a clamping jaw device 25, and these clamping jaw device 25 front ends are equipped with three claw sheets 251.Be provided with power set 30 in these main shaft body 20 rear ends, these power set 30 can adopt pneumatics or this broaching tool bar 24 of oil pressure element drives to do the front and back displacement.When the 24 front and back displacements of this broaching tool bar, the calvus of this clamping jaw device 25 is expansion or contraction-like, with the T shape portion 231 of pine oil or this cutter 23 of clamping.
Characteristics of the present utility model are, this broaching tool bar 24 is concaved with a wedge-shaped impression 241 in its shaft pre-position, along the logical coolant flow channel 242 that is provided with of these broaching tool bar 24 central interior, cooling water can enter thus, this place, coolant flow channel 242 the place aheads is provided with a check (non-return) valve 243, and it has the effect that prevents the cooling water adverse current.
The relative broaching tool bar of these clamping jaw device 25 central interior 24 places are also logical to be provided with a coolant flow channel 252, makes cooling water can feed these cutter 23 inside and cools off.
These power set 30 comprise a cylinder body 31 and a piston main body 32, these cylinder body 31 inner recessed empty inner rooms 311 that form, and be provided with a tap 312 and pass to this inner room 311, these cylinder body 31 outsides are fixed with a cylinder cap 33, these cylinder cap 33 inside are provided with one and enter hole 331 and pass to inner room 311, and its periphery also is concaved with a circular groove 332.This piston main body 32 is located in the inner room 311 of cylinder body 31, and it is by 321 involutory compositions of two discoid pieces, and its inside is arranged with a room 322, can be nested with for a plurality of bearings 323, and periphery has a flange 324, is arranged with O shape ring 325 on this flange 324, and the salable inwall that pastes this cylinder body 31 that supports.External pressure source can enter hole 331 and tap 312 passes to inner room 311 by this, moves forward or backward to drive this piston main body 32.
This machine tool chief axis tool-broaching mechanism also has compels to push away device 40, shown in Fig. 6,7, this is compeled to push away device 40 and comprises and take in body 41, a pull bar 42, a scotch 43 and a wedging block 44: this is taken in body 41 and is fixedly arranged in the axis hole 21, it includes a ring seat 411, an a plurality of thimble 412 and a sulfuration latch closure 413, these ring seat 411 inside can pack into this wedging block 44 and scotch 43 asked; This asks thimble 412 is to be made by the phosphor bronze material, and its inside can be inserted in for pull bar 42 for hollow, and it has the location lubrication of similar bearing; This sulfuration latch closure 413 is to be made by vulcanized rubber material distinguish, its periphery has raised line 413 ', can overlap and terminate in this axis hole 21 rear ends one annular groove 211, can and ask thimble 412 spacing and be fixed in the axis hole 21 with this ring seat 411 whereby, this pull bar 42 rear ends cover is filled in this piston main body 32 bearings 323, its end is protruding exposes this power set 30 outsides, and interlocking one dust cap 45 is the interlock shape with piston main body 32, makes this piston main body 32 can drive whole pull bar 42 and moves forward and backward; This dust cap 45 is stretched and is provided with a cover edge 451, when 45 reaches (just pressing from both sides the cutter operating condition) of this dust cap, this cover edge 451 is overlapped cover in these cylinder body 31 circular grooves 332 with these power set 30 rear ends of cover cap, can avoid flying dust to enter in this bearing 323; These pull bar 42 inside have a pore 421 that can supply broaching tool bar 24 to place, be provided with in week in these pore 421 front ends one should with the relative pore 421 of broaching tool bar 24 wedge-shaped impressions 241, it is inner and solid only at these wedging block 44 anterior position places that this scotch 43 is sheathed on ring seat 411, and it can support and this wedging block 44 of block for protruding; In the present embodiment, these wedging block 44 distinguish become three, can surround circle after involutory, and be arranged in the middle of this broaching tool bar 24 and the pull bar 42, and posterior edges have one can with the outer inclined-plane 441 of contra bevel 422 wedgings of this pull bar 42, and have in addition one can with the interior inclined-plane 442 of wedge-shaped impression 241 wedgings of this broaching tool bar 24.
As Fig. 4, shown in 5, when the user installs this cutter 23, this cutter 23 is placed in the bellmouth 22, this moment, the piston main body 32 of these power set 30 promoted this pull bar 42 forward, but the outer inclined-plane 441 of the contra bevel 422 proper pushing tow wedging blocks 44 in the pore 421 of this pull bar 42, because this wedging block 44 is subjected to the block of scotch 43, therefore this wedging block 44 has and inwardly compels to use instead, this wedging block 44 is again with inclined-plane in it 442 wedge-shaped impression 241 of these broaching tool bars 24 of pushing tow in the other direction, force whole broaching tool bar 24 to move backward, this broaching tool bar 24 promptly drives this this cutter 23 of clamping jaw device 25 clampings, thereby cutter 23 packings are fixed on the main shaft body 20.
So, machine tool chief axis tool-broaching mechanism of the present utility model can solve the shortcoming of general tool-broaching mechanism in dynamic balancing, its utilization is provided with one and compels to push away device 40 to replace general circular shell fragment 16, this is compeled to push away device 40 and comprises a pull bar 42 and a wedging block 44, by this wedging block 44 inside and outside double inclined planes 442,441 respectively with this pull bar 42 and broaching tool bar 24 wedgings, can oppositely compel push-and-pull knife bar 24 backward when this pull bar 42 is moved forward, can drive the fixed effect that this clamping jaw device 25 reaches powerful packing broaching tool; The topmost characteristics of the utility model are these mutual socket driving fits of composition member of compeling to push away device 40, and cross sectional shape is circle, make each member along the average counterweight of circumferential position weight everywhere, if counterweight has error more can make its balance through overcorrect slightly, therefore main shaft body 20 of the present utility model can keep good dynamic balancing when rotated, this main shaft body 20 can be run up, rotating speed can be up to more than 0～15000RPM, and it is quite steady when the utility model runs up, can significantly improve the cutting ability of lathe, and this main shaft body 20 need not extend, and has the high characteristics of the small but excellent degree of volume, can effectively save manufacturing cost.
Claims (6)
1. machine tool chief axis tool-broaching mechanism, be at the logical axis hole that is provided with of a main shaft body interior, be equipped with a broaching tool bar in the described axis hole, described broaching tool bar front end is equipped with a clamping jaw device, described main shaft body rear end is provided with one and can drives described broaching tool bar and make described clamping jaw device make to open or fold the power set of shape, it is characterized in that:
The shaft of described broaching tool bar is concaved with a wedge-shaped impression;
Described power set comprise a cylinder body and a piston main body, and described piston main body can be set in the inner room of described cylinder body with moving back and forth, and its inside also is arranged with a plurality of bearings;
Described machine tool chief axis tool-broaching mechanism also has compels to push away device, describedly compel to push away device and comprise and take in body, one pull bar, one scotch and a wedging block, the cross sectional shape of these members is circle, the described body of taking in is fixedly arranged in the described axis hole, described pull bar has been taken in its inside, scotch and wedging block, described pull bar can move forward and backward and its rear end and described piston main body connect solid, the inner tool one of described pull bar for described broaching tool bar place into pore, be provided with in week in the described pore front end one with the relative contra bevel of described broaching tool bar wedge-shaped impression, described scotch terminates in wedging block anterior position place admittedly, and protruding keeping out ended described wedging block, described wedging block is arranged in the middle of described broaching tool bar and the pull bar, and have one with the outer inclined-plane of described pull bar contra bevel wedging, and one and the interior inclined-plane of described broaching tool bar wedge-shaped impression wedging.
2. machine tool chief axis tool-broaching mechanism as claimed in claim 1 is characterized in that:
Described broaching tool bar central interior place is provided with a coolant flow channel, and described coolant flow channel the place ahead place is provided with a check (non-return) valve, and at relative described clamping jaw device central interior place the also logical coolant flow channel that is provided with.
3. machine tool chief axis tool-broaching mechanism as claimed in claim 1 is characterized in that:
Described piston main body is by two diskware involutory compositions, and its inner chamber forms a room that is nested with for a plurality of bearings, and periphery has a sealing and supports the flange that pastes described inboard wall of cylinder block.
4. machine tool chief axis tool-broaching mechanism as claimed in claim 1 is characterized in that:
Described pull bar rear end is protruding exposes the described power set outside and is connected with a dust cap, and described dust cap is stretched and is provided with a cover edge, and described cover edge cover covers on the circular groove of described cylinder body.
5. machine tool chief axis tool-broaching mechanism as claimed in claim 1 is characterized in that:
Described wedging block is involutory circular by three distinguish.
6. machine tool chief axis tool-broaching mechanism as claimed in claim 1 is characterized in that:
The described body of taking in includes a ring seat, a plurality of thimble and sulfuration latch closure asked; Described ring seat internal sleeve is equipped with described wedging block and scotch; The described thimble of asking is to be made by the phosphor bronze material, and described pull bar can be inserted in its inside; Described sulfuration latch closure is made by the vulcanized rubber distinguish, and its periphery has can overlap the raised line that terminates in one annular groove of described axis hole rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00206958 CN2416994Y (en) | 2000-03-28 | 2000-03-28 | Machine tool spindle broach mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00206958 CN2416994Y (en) | 2000-03-28 | 2000-03-28 | Machine tool spindle broach mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2416994Y true CN2416994Y (en) | 2001-01-31 |
Family
ID=33574753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00206958 Expired - Fee Related CN2416994Y (en) | 2000-03-28 | 2000-03-28 | Machine tool spindle broach mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2416994Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947743A (en) * | 2010-09-17 | 2011-01-19 | 浙江工业大学 | Broaching force test device |
| CN102240819A (en) * | 2011-06-21 | 2011-11-16 | 无锡桥联数控机床有限公司 | Loose-preventing structure of automatic cutter releasing pulling mechanism |
| CN103465047A (en) * | 2013-08-15 | 2013-12-25 | 烟台海德汽车零部件有限责任公司 | Spring assembly for broaching during machining of central main shaft |
| CN103949898A (en) * | 2014-04-25 | 2014-07-30 | 西安航空动力股份有限公司 | Air pressure detection positioning device and method |
| CN104708679A (en) * | 2015-04-03 | 2015-06-17 | 浙江瑞明节能科技股份有限公司 | Device for processing wood end |
| CN109550978A (en) * | 2019-02-15 | 2019-04-02 | 江苏凯勒姆智能装备有限公司 | A kind of spindle box of turn-milling cutting equipment |
| CN110494245A (en) * | 2017-03-27 | 2019-11-22 | 日本电产株式会社 | Broach tool |
| CN111890135A (en) * | 2020-07-13 | 2020-11-06 | 广州市昊志机电股份有限公司 | Knife sharpener and broach mechanism |
| CN109550978B (en) * | 2019-02-15 | 2024-04-26 | 常州柯勒玛智能装备有限公司 | Spindle box of turning and milling equipment |
-
2000
- 2000-03-28 CN CN 00206958 patent/CN2416994Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947743A (en) * | 2010-09-17 | 2011-01-19 | 浙江工业大学 | Broaching force test device |
| CN102240819A (en) * | 2011-06-21 | 2011-11-16 | 无锡桥联数控机床有限公司 | Loose-preventing structure of automatic cutter releasing pulling mechanism |
| CN103465047A (en) * | 2013-08-15 | 2013-12-25 | 烟台海德汽车零部件有限责任公司 | Spring assembly for broaching during machining of central main shaft |
| CN103949898A (en) * | 2014-04-25 | 2014-07-30 | 西安航空动力股份有限公司 | Air pressure detection positioning device and method |
| CN103949898B (en) * | 2014-04-25 | 2016-09-14 | 西安航空动力股份有限公司 | A kind of air pressure detection formula positioner and method |
| CN104708679A (en) * | 2015-04-03 | 2015-06-17 | 浙江瑞明节能科技股份有限公司 | Device for processing wood end |
| CN110494245A (en) * | 2017-03-27 | 2019-11-22 | 日本电产株式会社 | Broach tool |
| CN109550978A (en) * | 2019-02-15 | 2019-04-02 | 江苏凯勒姆智能装备有限公司 | A kind of spindle box of turn-milling cutting equipment |
| CN109550978B (en) * | 2019-02-15 | 2024-04-26 | 常州柯勒玛智能装备有限公司 | Spindle box of turning and milling equipment |
| CN111890135A (en) * | 2020-07-13 | 2020-11-06 | 广州市昊志机电股份有限公司 | Knife sharpener and broach mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |